diff options
Diffstat (limited to 'utils')
| -rw-r--r-- | utils/rpctrace.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/utils/rpctrace.c b/utils/rpctrace.c index c954e515..62d3c876 100644 --- a/utils/rpctrace.c +++ b/utils/rpctrace.c @@ -1195,6 +1195,16 @@ wrap_new_task (mach_msg_header_t *inp, struct req_info *req) ports_port_deref (task_wrapper1); } +/* Returns true if the given message is a Mach notification. */ +static inline int +is_notification (const mach_msg_header_t *InHeadP) +{ + int msgh_id = InHeadP->msgh_id - 64; + if ((msgh_id > 8) || (msgh_id < 0)) + return 0; + return 1; +} + int trace_and_forward (mach_msg_header_t *inp, mach_msg_header_t *outp) { @@ -1219,7 +1229,24 @@ trace_and_forward (mach_msg_header_t *inp, mach_msg_header_t *outp) /* Look up our record for the receiving port. There is no need to check the class, because our port bucket only ever contains one class of ports (traced_class). */ - info = ports_lookup_port (traced_bucket, inp->msgh_local_port, 0); + + if (MACH_MSGH_BITS_LOCAL (inp->msgh_bits) == MACH_MSG_TYPE_PROTECTED_PAYLOAD) + { + info = ports_lookup_payload (traced_bucket, inp->msgh_protected_payload, + NULL); + if (info) + { + /* Undo the protected payload optimization. */ + inp->msgh_bits = MACH_MSGH_BITS ( + MACH_MSGH_BITS_REMOTE (inp->msgh_bits), + is_notification (inp)? MACH_MSG_TYPE_MOVE_SEND_ONCE: info->type) + | MACH_MSGH_BITS_OTHER (inp->msgh_bits); + inp->msgh_local_port = ports_payload_get_name (info); + } + } + else + info = ports_lookup_port (traced_bucket, inp->msgh_local_port, NULL); + assert (info); /* A notification message from the kernel appears to have been sent |